Jarrett Walker discusses what he believes is the biggest communications failure of public discussions about transit. Frequency. At CNU in Madison, Walker discusses the lack of discussion on this important subject.

Jarrett Walker who writes for Human Transit often talks about designing transit systems that work for people. In this interview at the CNU in Madison, Wisconsin, we asked Jarrett to describe his transit design theory, "Being On the Way".

Anyone want to start a blog? It can be daunting. What do you want to write about? Who is your audience? Will people read? Those are questions that go through many people's heads before they take the plunge. Yonah Freemark who writes the wonderful Transport Politic discusses what he's learned so far in the blogging process. He has some advice for folks looking to start thier own blogs and its definitely worth a listen.

Recently San Francisco got a slight scare. Its most famous tech company was expanding fast and needed space for new workers. However, the amount of office space needed was either split over multiple buildings or outside of the city. We often talk about the need to keep companies in cities and make sure they have incentives to stay, however this might be one of the major challenges of keeping buisinesses in the places where people can take transit or bike/walk to work. Jeff Tumlin of Nelson Nygaard discusses building floor plates and what that means for companies that want to stay in cities.

Norman Garrick discusses what happens when you start to change your infrastructure from being pedestrian supported to auto supported. Case in point, the City of Hartford, which had at one point 15,000 parking spaces when it was a more walkable place. Today, it has 45,000 parking spaces and less jobs that it did then. To see what that means in terms of city destruction, you only have to wait till the end of the discussion to see the destruction that has on a city's soul. In plain terms, making way for automobility decreases the efficiency of cities.

People are tired of hearing about Portland. But I asked Charlie Hales what he liked best about the region and he mentioned all of the unsung heros that work behind the scenes to make it an amazing place. Of course Portland has its problems and its blemishes just like anyone else, but you have to give their civic infrastructure credit, they do a great job up there.

Tom Low of DPZ in Charlotte discusses the initial places where New Urbanists thought more sustainable infrastructure could be used. He also talks a bit about how to deal with engineers that will try to gold plate the infrastructure as well as the acceptance of more environmental principles.

Jeff Tumlin gives his thoughts on private corporate transportation, such as tech buses in Silicon Valley and Seattle. In his opinion, it's an interesting solution to the problem of job sprawl that we see happening all over the country. But the areas have to be dense and in some instances, you'll see real estate agents noting the proximity of a property to the tech bus stop locations. You'll want to check this video out.

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The Half-Mile Circles blog is a place to share information about recent research, innovations and other issues related to TOD and livable communities. We also invite experts to talk about their work. Combined with Jeff Wood's The Other Side of the Tracks, the Half-Mile Circles blog is an opportunity for a daily dose of TOD, and allows you to weigh in with your own opinions. Usual blog rules apply; please keep the comment threads civil. To submit an expert article, contact Jeff Wood